. >> the pentagon is grounding a fleet of f 35 fighter jets after discovering a cracked engine blade. after what was known as an air force version of the jet. >> other versions flown by the navy and marine corps. all versions grounded today. the most expensive program totallest maifted cost nearly $400 billion. >> boeing proposed a long term fix for the dream liner jets. the company proposed several options such as adding insulation in a steel box with a venting tube. faa is reviewing this. if accepted planes could be back in the air in about eight weeks. the fleet grounded after a series of incidents involving overheated batteries. >> a bay area freshman congressman has an unusual way of making rounds in his district asking companying to come in to learn the ropes. >> mark matthews was there. >> congressman swalwell these outings give him a chance to learn about companies and have pictures taking. >> this is like that. >> if there are reporters present there is a chance to sequester spending cuts that are just seven day as way. >> if we have sequester cuts goitsing to heard our public schools.